It seems strange now to think of just how much pearl-clutching went on with all this stuff. I think the big mistake was those crappy PMRC (?) labels about parental advice or whatever, which basically became a badge of honour for whoever was buying them. I remember a couple of times knocking back very young kids from buying stuff, as it wasn't wort the hassle of dealing with angry parents. I think on both occasions, the parents came in to buy it for them, annoyed to have had their day interrupted.
What scares people now? After the whole thing of flower power, punk, acid house, is there anything left? Drill? I don't think I know enough about that to comment. I think there's always got to be something subversive about rock and roll though, otherwise - what's the point? It is genuinely difficult to see where that comes form next though. We live in a very desensitized world.
I know my mum & dad expressed concerns from time to time - maybe more about content than language or imagery? I think the Jesus & Mary Chain probably raised more eyebrows than anything else. When I think about my nieces and nephews though, I'm not sure there's much I'd be worried about them hearing. Maybe something like "Farewell Transmission" or "People Who Died" would be more subversive than 2Pac.